Key-holding lock attachment.



M. W. ROSENSHINE.

KEY HOLDING LOCK ATTACHMENT. .APPLICATION FILED NOV- 24, 1915.

WITNESSES:

Amomwmzs THE NORRIS PETERS cm, \vnsmucnm. 0, cv

@Ab AEIWT til I MORRIS W. ROSENSHINE, OF SAN FRANCISCO, CALIFORNIA.

KEY-HOLDING LOCK ATTACHMENT.

Application filed November 24, 1915.

To all whom it may concern:

Be it known that I, Momns W. Rosnn- SHINE, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Key-Holding Lock Attachments, of which the following is a specification.

My invention relates to means for securing keys in locks in such a manner as to prevent their being turned or removed after the door has been locked.

It consists -of a plate slidable within the escutcheon and across the keyhole in such a manner that it may be made to engage the key after it has been turned and the bolt shot into place in such a manner that the key cannot be turned or removed from its place, and the key thus locked in place acts as a stop to prevent the mechanism of the look from being tampered with.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a front elevation, partly broken away and parts being shown in section; and Fig. 2 is a section on the line l-4 of Fig. 1.

A is that portion of the shank of the key which is adapted to enter the lock B, and it carries the usual wards 2 by which the bolt of the lock may be moved. Exterior to the lock the shank passes through the escutcheon plate B and is preferably flattened in such a manner as to be engaged with the lower part of the keyhole or with the locking slide, as the case may be.

A slide 5 of resilient thin metal is vertically guided and formed with a slot the lower end of which is made divergent as indicated at 8 so as to readily admit the key shank A. The slide has an outwardly projecting stem having a head 6 secured thereto, which stem operates in a slot 7 formed in the escutcheon plate B. A horizontal slot 9 is also formed in the escutcheon plate of a size to admit the head 6 of the stem.

In operation, the head 6 of the stem is gripped and moved downwardly effecting similar movement of the slide 5 and thereby causing the key shank A to be received in the slot of the slide and held by the latter Specification of Letters Patent.

Patented Uct. 2A, IQIB.

Serial No. 63,259.

against turning. The slide 5, due to its resilient nature, will, when the head 6 of its stem registers with the slot 9, automatically cause the head 6 to spring into the slot 9, thus locking the slide against sliding move ment.

To release the slide, it is merely necessary to pull the head 6 outwardly to cause same to be free of the slot 9 and to then move the slide upwardly in which movement the head 6 of the stem is disposed in front of the escutcheon plate B.

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. In combination with a look, its key, and an escutcheon plate provided with a key hole and also provided with an opening, a resilient slide slotted to receive the key shank, and means borne by the slide and automatically movable into said opening upon engagement of the slide with the key shank to lock the slide.

2. In combination with a look, its key and an escutcheon plate provided with a key hole, and an opening, a resilient slide to the rear of the plate formed to engage the key shank, and means on the slide having a part disposed in front of the plate to engage 'in said opening to prevent movement of the slide, said means being automatically moved inwardly toward said plate and into the plate opening upon the slide being moved to bring said means and opening into register.

3. In combination with a lock, its key, and an escutcheon plate provided with a key hole and also provided with an opening, a resilient slide slotted to receive the key shank, and a stem wider than said hole and projecting out from the slide and automatically movable into said opening by and upon engagement of the slide with the key shank, said stem projecting beyond the front face of the escutcheon plate so as to enable manual sliding operation of the slide.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

MORRIS W. ROSENSHINE.

Witnesses:

JOHN H. HERRING, W. W. I-IEALEY.

topics of this patent may be obtained for five cents each. by addressing. the Commissioner or batenta, Washington, D. G. 

